This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 14 Respiration In Plants – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 14 Respiration In Plants Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Another name of anoxybiotic A) Aerobic respiration. B) Anaerobic respiration. C) Both a and b. D) None of these. Show Answer Correct Answer: B) Anaerobic respiration. 2. In succulent plants, RQ is less than one because of A) Complete reduction. B) Complete oxidation. C) Incomplete oxidation. D) Incomplete reduction. Show Answer Correct Answer: C) Incomplete oxidation. 3. 3 molecules of glucose during anaerobic respiration gives A) 54 molecules of ATP. B) 4 molecules of ATP. C) 2 molecules of ATP. D) 6 molecules of ATP. Show Answer Correct Answer: D) 6 molecules of ATP. 4. What gases are exchanged by plants during the day? A) Water vapour into leaf, Oxygen out of leaf. B) Oxygen into leaf, Carbon dioxide out of leaf. C) No gas exchange. D) Carbon dioxide into leaf, Oxygen out of leaf. Show Answer Correct Answer: D) Carbon dioxide into leaf, Oxygen out of leaf. 5. End product of Citric acid cycle ..... A) Pyruvic avid. B) Acetyl CO A. C) CO2 + H2O. D) Citric acid. Show Answer Correct Answer: C) CO2 + H2O. 6. Which of the following enzymes involved in Kreb's cycle is not present in the mitochondrial matrix? A) Fumarase. B) Malate dehydrogenase. C) Aconitase. D) Succinate dehydrogenase. Show Answer Correct Answer: D) Succinate dehydrogenase. 7. What is made at the end of glycolysis? A) Water. B) Pyruvate. C) FADH2. D) Carbon dioxide. Show Answer Correct Answer: B) Pyruvate. 8. The respiratory substrates are usually carbohydrates, fats and proteins. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. The net yield of aerobic respiration is A) 40ATP. B) 38ATP. C) 30ATP. D) 34ATP. Show Answer Correct Answer: B) 38ATP. 10. What are the special molecules that provide energy directly to all the plant cells? A) Glucose molecules. B) Chlorophyll molecules. C) Phloem vessels. D) ATP molecules. Show Answer Correct Answer: D) ATP molecules. 11. Glycolysis results in the total production of: A) 4 NADH. B) 2 ATP. C) 4 ATP. D) 2 Acetyl CoA. Show Answer Correct Answer: C) 4 ATP. 12. Where does respiration takes place in humans A) Cell membrane. B) Lungs. C) Gills. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. 13. Which type of seeds show maximum respiration? A) Boiled seeds. B) Germinating seeds. C) Dry seeds. D) Dead seeds. Show Answer Correct Answer: B) Germinating seeds. 14. What is the process by which energy is released in plants? A) Respiration. B) Transpiration. C) Photosynthesis. D) Germination. Show Answer Correct Answer: A) Respiration. 15. How many molecules of ATP are produced by the oxidation of one molecule of NADH and FADH2 respectively. A) 2, 3. B) 3, 1. C) 3, 2. D) 1, 2. Show Answer Correct Answer: C) 3, 2. 16. What process do plants use to break down glucose? A) Respiration. B) Transpiration. C) Photosynthesis. D) Fermentation. Show Answer Correct Answer: A) Respiration. 17. Where does aerobic respiration occur in animals? A) All cells. B) Only in muscle cells. C) Only in organs. D) Only in the brain. Show Answer Correct Answer: A) All cells. 18. ETS is present in A) Stroma. B) Outer membrane of mitochondria. C) Inner membrane of mitochondria. D) Matrix of mitochondria. Show Answer Correct Answer: C) Inner membrane of mitochondria. 19. Glycolysis is a process A) That occurs next to Krebs cycle. B) In which glucose is broken down into pyruvate. C) In which glycogen is broken down into glucose. D) Which occurs in mitochondria. Show Answer Correct Answer: B) In which glucose is broken down into pyruvate. 20. In glycolysis, dehydration occurs during the formation of A) PEPA. B) DHAP. C) 2-PGA. D) 3-PGA. Show Answer Correct Answer: A) PEPA. 21. An artificial kidney machine works on the principle of A) Circulation. B) Dialysis. C) Excreation. D) Analysis. Show Answer Correct Answer: B) Dialysis. 22. During which process do plants release energy stored in glucose? A) Germination. B) Respiration. C) Transpiration. D) Photosynthesis. Show Answer Correct Answer: B) Respiration. 23. Where within the cell does photosynthesis take place? A) The mitochondria. B) The chloroplasts. C) The nucleus. D) The cytoplasm. Show Answer Correct Answer: B) The chloroplasts. 24. The respiration of the plants ocurrs in: A) The morning. B) The night. C) The morning and night. D) None of the above. Show Answer Correct Answer: C) The morning and night. 25. Which of the following is a reactant for aerobic respiration? A) Glucose. B) Carbon Dioxide. C) Water. D) ATP. Show Answer Correct Answer: A) Glucose. 26. Besides water, the urine mainly contains: A) Nitric acid. B) Glucose. C) Bile pigments. D) Urea. Show Answer Correct Answer: D) Urea. 27. ..... is the synthesis of ATP from ADP and inorganic phosphate in the presence of light. A) Quantum yield. B) Photophosphorylation. C) Oxidative phosphorylation. D) Uphill transport. Show Answer Correct Answer: B) Photophosphorylation. 28. Averege heart rate A) 12-20. B) 72-80. C) 60-70. D) 73-80. Show Answer Correct Answer: B) 72-80. 29. Breathing generates energy A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 30. Which of the following junction cements the neighbouring cells? A) Tight junction. B) Adhering junction. C) Gap junction. D) None of the above. Show Answer Correct Answer: B) Adhering junction. 31. Respiratory quotient of carbohydrates is(a) 0.9(b) 1.2(c) 1(d) 0 A) 0. B) 1.2. C) 0.9. D) 1. Show Answer Correct Answer: D) 1. 32. When a ..... is a respiratory substrate, the R.Q is 0.7 A) Carbohydrate. B) Fat. C) Glucose. D) Protein. Show Answer Correct Answer: B) Fat. 33. Which of the following is not a type of tissue? A) Cardiac tissue. B) Epithelial tissue. C) Connective tissue. D) Neural tissue. Show Answer Correct Answer: A) Cardiac tissue. 34. Respiration is an: A) Exothermic process. B) Endothermic process. C) Anabolic process. D) None of these. Show Answer Correct Answer: A) Exothermic process. 35. Bean shaped structure in stomata are called A) Chloroplast. B) Epidermal cells. C) Guard cells. D) Stoma. Show Answer Correct Answer: C) Guard cells. 36. When the alcohol concentration reaches about ..... percent during fermentation, the yeast cells are poisoned to death. A) 23%. B) 31%. C) 12%. D) 13%. Show Answer Correct Answer: D) 13%. 37. Pyruvate dehydrogenase activity during aerobic respiration requires: A) Magnesium. B) Iron. C) Cobalt. D) Calcium. Show Answer Correct Answer: A) Magnesium. 38. How many decarboxylation reaction occurs in a 1 round of Kreb cycle? A) 4. B) 1. C) 2. D) 3. Show Answer Correct Answer: C) 2. 39. 1st step (reaction) of glycolysis is- A) Reductive step. B) Endergonic. C) Exergonic. D) Oxidative step. Show Answer Correct Answer: B) Endergonic. 40. After the Krebs cycle, which products feed into the electron transport chain? A) NADH and FADH2. B) ATP and NADH. C) NADH only. D) ATP only. Show Answer Correct Answer: A) NADH and FADH2. 41. What is the overall equation for aerobic respiration in animals? A) Glucose + Carbon Dioxide $\rightarrow$ Oxygen + Water + Energy (ATP). B) Glucose + Oxygen $\rightarrow$ Carbon Dioxide + Water + Energy (ATP). C) Carbon Dioxide + Water $\rightarrow$ Glucose + Oxygen + Energy (ATP). D) Oxygen + Water $\rightarrow$ Glucose + Carbon Dioxide + Energy (ATP). Show Answer Correct Answer: B) Glucose + Oxygen $\rightarrow$ Carbon Dioxide + Water + Energy (ATP). 42. During aerobic respiration ..... ATP molecules are produced. A) 38. B) 8. C) 2. D) 32. Show Answer Correct Answer: A) 38. 43. Conversion of glucose to glucose-6-phosphate during glycolysis consumes ATP and is catalysed by phosphofructokinase. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 44. Which of the following process make direct use of oxygen A) Glycolysis. B) Electron transport. C) Krebs citric acid cycle. D) Fermentation. Show Answer Correct Answer: B) Electron transport. 45. The final acceptor of electrons in ETC A) Oxygen. B) Water. C) Cytochrome c. D) None of the above. Show Answer Correct Answer: A) Oxygen. 46. During which time of the day do plants perform both photosynthesis and respiration? A) Day (light). B) Night (dark). C) Both day and night. D) Neither day nor night. Show Answer Correct Answer: A) Day (light). 47. Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is know as(a) TCA pathway(b) Lactic acid pathway (c) Hms pathway(d) Glycolysis A) Glycolysis. B) TCA pathway. C) Hms pathway. D) Lactic acid pathway. Show Answer Correct Answer: A) Glycolysis. 48. When a molecule of pyruvic acid is subjected to fermentation and forms lactic acid, there is A) Loss of 3 ATP. B) Gain of 3 ATP. C) Gain of 2 ATP. D) Loss of 6 ATP. Show Answer Correct Answer: A) Loss of 3 ATP. 49. After the Krebs Cycle only a small portion of the energy of glucose has been converted to ATP. At this point the majority of usable energy is contained in A) NADH and FADH$_{2}$. B) Carbon Dioxide. C) Acetyl-CoA. D) Citrate. Show Answer Correct Answer: A) NADH and FADH$_{2}$. 50. This is the "powerhouse" of the cell. Most of an eukaryotic cell's energy is made here. A) Mitochondria. B) Chloroplasts. C) Nucleus. D) Ribosomes. Show Answer Correct Answer: A) Mitochondria. 51. The electrons needed to replace those removed from photosystem I are provided by ..... A) Carbon dioxide. B) PS II. C) Water. D) Oxygen. Show Answer Correct Answer: B) PS II. 52. Pyruvic acid is the end product of glycolysis under both aerobic and anaerobic conditions. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 53. What two products are made during anaerobic respiration in plants? A) Carbon dioxide and water. B) Lactic acid and energy. C) Ethanol and carbon dioxide. D) Oxygen and glucose. Show Answer Correct Answer: C) Ethanol and carbon dioxide. 54. Which of the following is a '5C' compound? A) Oxaloacetic acid. B) $\alpha$-ketoglutaric acid. C) Succinic acid. D) Citric acid. Show Answer Correct Answer: B) $\alpha$-ketoglutaric acid. 55. Where does cellular respiration happen? A) Mitochondria. B) Cell membrane. C) Ribosomes. D) Chloroplasts. Show Answer Correct Answer: A) Mitochondria. 56. What is the main product of photosynthesis? A) Water. B) Nitrogen. C) Carbon dioxide. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 57. Fermentation occurs in the cell's A) Nucleus. B) Cytoplasm. C) Cristae. D) Cell membrane. Show Answer Correct Answer: B) Cytoplasm. 58. Which type of seeds are used to demonstrate respiration in plants? A) Germinating seeds. B) Dry seeds. C) Dead seeds. D) Boiled seeds. Show Answer Correct Answer: A) Germinating seeds. 59. Fundamentally, respiration is a process of A) Catabolism with energy release. B) Anabolism with energy release. C) Catabolism with energy storage. D) Anabolism with energy storage. Show Answer Correct Answer: A) Catabolism with energy release. 60. Aerobic respiration of one mole of glucose yeilds 138 ATP A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 14 Respiration In Plants Quiz 1Class 11 Biology Chapter 14 Respiration In Plants Quiz 2Class 11 Biology Chapter 14 Respiration In Plants Quiz 3Class 11 Biology Chapter 14 Respiration In Plants Quiz 4Class 11 Biology Chapter 14 Respiration In Plants Quiz 5Class 11 Biology Chapter 14 Respiration In Plants Quiz 6Class 11 Biology Chapter 14 Respiration In Plants Quiz 7Class 11 Biology Chapter 14 Respiration In Plants Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books